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研究与创新

Study: Ancestral Background Can Be Determined by Fingerprints

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马特·希普曼(Matt Shipman) 919.515.6386

A proof-of-concept study finds that it is possible to identify an individual’s ancestral background based on his or her fingerprint characteristics – a discovery with significant applications for law enforcement and anthropological research.

“这是第一个研究来看待这个问题this level of detail, and the findings are extremely promising,” says Ann Ross, a professor of anthropology at North Carolina State University and senior author of a paper describing the work. “But more work needs to be done. We need to look at a much larger sample size and evaluate individuals from more diverse ancestral backgrounds.”

人类学家多年来一直在研究指纹,因为他们对人类变异感兴趣。但是,这项研究研究了1级细节,例如模式类型和山脊计数。在刑事司法背景下使用的法医指纹分析研究了2级细节 - 更具体的变化,例如分叉,指纹脊分裂。

在这项研究中,研究人员研究了243名个人的1级和2级右夹具指纹的细节:61名非裔美国妇女;61名非裔美国人;61名欧美妇女;和60名欧美男人。分析了指纹,以确定是否有针对性或祖先背景的模式。

研究人员发现男女之间没有显着差异,但确实发现了欧​​美和非裔美国人血统之间的指纹2级细节的显着差异。

罗斯说:“需要做很多其他工作,但这有助于帮助执法。”“而且尤其重要的是,考虑到2009年,美国国家科学院呼吁在法医学方面采取更加科学的严格性 - 特别是将指纹列出作为值得额外研究的领域。

“This finding also tells us that there’s a level of variation in fingerprints that is of interest to anthropologists, particularly in the area of global population structures – we just need to start looking at the Level 2 fingerprint details,” Ross says.

纸,“指纹细节的性别,祖先和图案类型变化:人类学皮肤类似的法医学观点,” is published in theAmerican Journal of Physical Anthropology。该论文的主要作者是尼科尔·富尼尔(Nichole Fournier),他是北卡罗来纳州立大学的前研究生,现在在华盛顿州立大学。这项研究是在北卡罗来纳州罗利市市县认证局的协助下进行的。

- 船员 -

给编辑的注释:The study abstract follows.

“Sex, Ancestral, and Pattern Type Variation of Fingerprint Minutiae: A Forensic Perspective on Anthropological Dermatoglyphics”

Authors:尼科尔·A·富尼尔(Nichole A. Fournier),华盛顿州立大学;安·罗斯(Ann H. Ross),北卡罗来纳州立大学

出版:9月23日,American Journal of Physical Anthropology

doi: 10.1002/ajpa.22869

抽象的:目的:大多数关于皮肤类似人的人类学研究检查了1级细节的遗传和人口间变化(例如,模式类型,总脊计数),而法医学家则专注于2级和3级细节的个人独特性(例如,Minutiae和Minutiae和Minutiae和Minutiae和Minutiae和Minutiae and and毛孔分别用于阳性识别。本研究通过检查2级细节的性别,祖先和模式类型变化(例如,细节)来弥合研究人员 - 实践者之间的差距。材料和方法:243个个人的右食指上的分叉,脊,短脊,点和围栏(n = 61个非洲裔美国人♀; n = 61非裔美国人♂; n = 61欧洲裔美国人;分析了美国♂)。使用Mancova评估了性,血统和模式类型对细节变异的总体影响。ANOVA用于识别负责变异的2级详细变量。逻辑回归用于将个体分组分组。结果:性的影响微不足道。祖先是重要的(Wilks的λ= 0.053 f值= 2.98,df = 4,224,p值= 0.02),图案类型也是(Wilks’λ= 0.874 F值= 2.57,df = 12,592.94,p值= 0.003)。 The ANOVA reveals that bifurcations are responsible for the variation between ancestral groups, while bifurcations and ending ridges vary between patterns. Logistic regression results suggest that total bifurcations can predict the ancestry of an individual (ChiSq = 6.55, df = 1, Prob > ChiSq = 0.01). Discussion: Significant minutiae variation between ancestral groups yields information that is valuable in both a forensic and anthropological setting.

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